make sure you have another 10mA trip RCD for that heater ..

just to be safe..

The main problem is not the plug and socket. But the heater is too low and near to the shower head.

Even through the heater have a splash proof casing, I don't think you will comfort with it everytime splash the water on it during bath.

The metal flex hose is advise to change to non conductor material incase electric shock. Current run on surface of the material.

So with that flex hose long tangle down that ugly, why not install the heater higher and change the flex hose to pvc pipe.

That will be look better and safer.

Strongly agree on both issues raised. What's the height for the one installed in most homes? Does the manual suggest a minimum?

I think the manual do have suggest a sefety way of installing. Otherwise somebody sue the manufacturing already.

Here my example when I install the heater myself. The rainshower is higher than the heater definitely. And it abit nearer to the heater. I can't raise anymore the heater since the rainshower nature is higher.

I found out that the wire in the hole even have a rubber gourmet to prevent the water in, but the protection is not enough. I still can see some space between the wire. If the water sip in through the wire and flow into the heater, Kaboom.

So have to seal it with additional sealant. No choice even it ugly. Safety 1st.

Wow, in this model, the manufacturer chose a side entry. Think a better design would be bottom baffled entry or bottom slanted side with the electronic tucked away far at the top. I would prefer safety also.

water heater is definitely too low. all you need access to is the bottom knobs. i would put the knobs height at least at the top of your head level or if possible higher. unless you are really really short.

the bottom of my unit is around 6-6.5ft from the ground. hardly any water splash on it during shower. safety first.

Most of the heater is using side entry. But how they seal it properly will be their design strength.

Ya, bottom or slant down will be better design.

If I'm gonna replace my old heater with a new one (other brands), do I have to drill the screw holes again? Dunno whether heaters got a universal placement for the screw holes.

I don't, because the back cover is just plastic and water heater unit not heavy. I usually just screw over the plastic cover on to the existing holes. So far changed 3 units and work ok. Just make sure you put some silicon after screw to prevent water slip in from the screw. Usually it will not happen if the unit are higher than the shower head. For TS case, very likely it can slip into the unit.

Standard electrical wiring is bottom entry or the wires to make bottom loop down then up into the terminals..

As you have already figured out its to prevent gravity water seepage into the electrical enclosure..

silicon seal the cable entry as per your installation is better..

No need..

Get a timber furring strip (say a 1"x2") and attach the strip using the original holes..

Attach your new heater screw mounts onto the furring strip..

Ya, this is better. But I don't see any heater that have bottom open for wire so far.

Flip around also cannot find the bottom hole.

Another way is use cable glands. But provided the cable is 3core seal.

coming very soon... all water heaters will come pre-wired

Hi, I just happen to see this post. I’ve recently bought a storage heater. Can I use chrome hose for the hand shower ? Thanks!

Hi, just want to ask you guys.

My power point for the instant water heater in my bathroom is something like this. It comes down from the plaster ceiling and has no socket outlet. My question is, if the cables are not long enough to connect to the water heater, what is the safest and most practical way to do the installation?


Attached thumbnail(s)

Are you sure this is the power cable for your instant water heater? IMO, the cable might for lighting. You can double check with your electrician. If it is for instant water heater, you can get your electrician to extend the cable and put it near to your water heater.

As per the previous reply, this doesn't looks like wiring for the heater.

A heater wiring usually has an MCB or a lighted breaker type switch outside of the bathroom to provide current to the wiring. Please get someone more knowledgeable to check it out.

This post has been edited by kimzee: Oct 17 2018, 02:41 PM

It's ok, got it done already. As mentioned in my post, the water heater wiring just comes from the ceiling with no socket outlet there. Just mentioned it's similar to what's in the picture but the cables are different. So was just wondering what was the best and safest way to do it.

This post has been edited by 8sg9ft: Oct 17 2018, 02:48 PM

Water heater wiring is left hanging from the ceiling in designated toilets. Typical for all housing and residential development. The wiring will be connected to a 13A power switch on the outer wall though. Any electrician or water heater installer will know how to connect and install the water heater accordingly.

This post has been edited by kirakun: Oct 17 2018, 02:55 PM

If you are sure that wiring is for your water heater you can just access the top of the ceiling pull the cable up and route it down the ceiling of the wall where you want the heater installed. If the cable is long enough you do not need a socket. the wiring can just go directly inside the heater.

Just use some putty to fill up the old hole in the ceiling.

This post has been edited by kimzee: Oct 17 2018, 02:57 PM